9 10 | x | + | 7 10 | x | − | 1 | = | 59 5 |
| 方程左边 = | 8 5 | x | − | 1 |
8 5 | x | − | 1 | = | 59 5 |
8 5 | x | = | 59 5 | + | 1 |
8 5 | x | = | 64 5 |
| x | = | 64 5 | ÷ | 8 5 |
| = | 64 5 | × | 5 8 |
| = | 8 | × | 1 |
| x | = | 8 |
9 10 | x | + | 3 10 | x | + | 23 5 | = | 41 5 |
| 方程左边 = | 6 5 | x | + | 23 5 |
6 5 | x | + | 23 5 | = | 41 5 |
6 5 | x | = | 41 5 | − | 23 5 |
6 5 | x | = | 18 5 |
| x | = | 18 5 | ÷ | 6 5 |
| = | 18 5 | × | 5 6 |
| = | 3 | × | 1 |
| x | = | 3 |
7 10 | x | + | 1 10 | x | − | 8 5 | = | 4 5 |
| 方程左边 = | 4 5 | x | − | 8 5 |
4 5 | x | − | 8 5 | = | 4 5 |
4 5 | x | = | 4 5 | + | 8 5 |
4 5 | x | = | 12 5 |
| x | = | 12 5 | ÷ | 4 5 |
| = | 12 5 | × | 5 4 |
| = | 3 | × | 1 |
| x | = | 3 |
9 10 | x | + | 9 10 | x | − | 16 5 | = | 74 5 |
| 方程左边 = | 9 5 | x | − | 16 5 |
9 5 | x | − | 16 5 | = | 74 5 |
9 5 | x | = | 74 5 | + | 16 5 |
9 5 | x | = | 18 |
| x | = | 18 | ÷ | 9 5 |
| = | 18 | × | 5 9 |
| = | 2 | × | 5 |
| x | = | 10 |
3 5 | x | + | 2 5 | x | − | 19 5 | = | 6 5 |
| 方程左边 = | 1 | x | − | 19 5 |
| 1 | x | − | 19 5 | = | 6 5 |
| 1 | x | = | 6 5 | + | 19 5 |
| x | = | 6 5 | + | 19 5 |
| x | = | 5 |
4 5 | x | − | 12 5 | = | 39 10 | + | 1 10 | x |
4 5 | x | − | 1 10 | x | = | 39 10 | + | 12 5 |
7 10 | x | = | 39 10 | + | 12 5 |
7 10 | x | = | 63 10 |
| x | = | 63 10 | ÷ | 7 10 |
| = | 63 10 | × | 10 7 |
| = | 9 | × | 1 |
| x | = | 9 |